Question

A bank lent a sum of ₹5000 to Sneha. Two years later, Sneha returned a sum of ₹9800. If the interest was compounded annually, find the rate of interest.

Answer 1

Answer:

Take it.

Please vote the answers

Step-by-step explanation:

Given : P=5500,R=20%,n=2 To find A

A=P(1+

100

R

)

n

=5500(1+

100

20

)

2

=5500(1+

5

1

)

2

=5500(

5

6

)

2

=

25

5500×36

∴A=7920

This amount is to be paid in two equal instalments

So, each instalment =

2

7920

=3960.

Hence, each instalment is Rs. 3,960

Answer 2

Answer:

40%

Step-by-step explanation:

let rate of interest = R

(use compound interest formula)

5000 ×$(1+\frac{R}{100}) ^{2}$ =9800

$(1+\frac{R\\}{100}) ^{2}$=9800÷5000

$1+\frac{R}{100}$ = $\sqrt{1.96}$

$\frac{100+R}{100}$ = 1.4

100 +R =1.4×100

100+R =140

R=140-100

R=40

hence answer = 40%

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